/* packet-gmr1_bcch.c * * Routines for GMR-1 BCCH dissection in wireshark. * Copyright (c) 2011 Sylvain Munaut * * References: * [1] ETSI TS 101 376-4-8 V1.3.1 - GMR-1 04.008 * [2] ETSI TS 101 376-4-8 V2.2.1 - GMPRS-1 04.008 * [3] ETSI TS 101 376-4-8 V3.1.1 - GMR-1 3G 44.008 * * $Id$ * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include "packet-csn1.h" /* GMR-1 BCCH proto */ static int proto_gmr1_bcch = -1; /* GMR-1 BCCH sub tree */ static gint ett_gmr1_bcch = -1; /* Handoffs */ static dissector_handle_t data_handle; /* ------------------------------------------------------------------------ */ /* CSN1 fields */ /* ------------------------------------------------------------------------ */ /* Segment 1A fields - [3] 11.5.2.66 */ static int hf_seg1a_class_2_version = -1; static int hf_seg1a_class_3_version = -1; static int hf_seg1a_syncinfo_sb_frame_ts_offset = -1; static int hf_seg1a_syncinfo_sb_symbol_offset = -1; static int hf_seg1a_syncinfo_sa_freq_offset = -1; static int hf_seg1a_rachctrl_max_retrans = -1; static int hf_seg1a_rachctrl_acc[16] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int hf_seg1a_rachctrl_cell_bar_access = -1; static int hf_seg1a_miscinfo_sb_reselection_hysteresis = -1; static int hf_seg1a_miscinfo_spare = -1; static int hf_seg1a_miscinfo_priority_access_ind = -1; static int hf_seg1a_gbch_present = -1; static int hf_seg1a_test_gs = -1; static int hf_seg1a_test_gs2 = -1; static int hf_seg1a_spare1 = -1; static int hf_seg1a_cell_bar_access_extension2 = -1; static int hf_seg1a_spare2 = -1; static int hf_seg1a_cell_bar_access_extension = -1; /* Segment 2A & 2Abis fields - [3] 11.5.2.67 / 11.5.2.68 */ static int hf_seg2a_class_4_version = -1; static int hf_seg2a_syncinfo_sa_sirfn_delay = -1; static int hf_seg2a_syncinfo_sa_bcch_stn = -1; static int hf_seg2a_syncinfo_superframe_num = -1; static int hf_seg2a_syncinfo_multiframe_num = -1; static int hf_seg2a_syncinfo_mffn_high_bit = -1; static int hf_seg2a_selcrit_rxlev_select_min = -1; static int hf_seg2a_miscinfo_sb_selection_power = -1; static int hf_seg2a_lainfo_sa_pch_config = -1; static int hf_seg2a_lainfo_sa_bach_config = -1; static int hf_seg2a_lainfo_rach_ts_offset = -1; static int hf_seg2a_lainfo_n_page_occurrences = -1; static int hf_seg2a_lainfo_imsi_attach_detach_ind = -1; static int hf_seg2a_lainfo_ecsc_indication = -1; static int hf_seg2a_lainfo_si_update_ind = -1; /* Segment 2B fields */ /* Segment 2Bbis fields */ /* Segment 3A fields - [1] 11.5.2.71 */ static int hf_seg3a_lai_mcc = -1; static int hf_seg3a_lai_mnc = -1; static int hf_seg3a_lai_lac = -1; static int hf_seg3a_lai_msc_id = -1; static int hf_seg3a_lai_spot_beam_id = -1; static int hf_seg3a_system_sat_id = -1; static int hf_seg3a_system_sys_id = -1; static int hf_seg3a_satpos_latitude = -1; static int hf_seg3a_satpos_longitude = -1; static int hf_seg3a_satpos_radius = -1; static int hf_seg3a_beam_latitude = -1; static int hf_seg3a_beam_longitude = -1; static int hf_seg3a_miscinfo_sb_reselection_timer = -1; static int hf_seg3a_spare = -1; /* Segment 3B fields */ /* Segment 3Bbis fields */ /* Segment 3C fields */ /* Segment 3D fields */ /* Segment 3E fields */ /* Segment 3Ebis fields */ /* Segment 3F fields */ /* Segment 3G fields */ /* Segment 3Gbis fields */ /* Segment 3H fields */ /* Segment 3I fields */ /* Segment 3J fields */ /* Segment 3Jbis fields */ /* Segment 3Kbis fields */ /* Segment 3L fields */ /* Segment 3M fields */ /* Segment 4A fields */ /* Segment 4B fields */ /* Segment 4C fields */ /* Segment 4D fields */ /* Segment 4E fields */ /* Segment 4F fields */ /* Segment 4G fields */ /* Segment 4H fields */ /* Segment 4I fields */ /* Segment 4J fields */ /* Segment 4K fields */ /* System Information fields [1] 10.1.31 & 10.1.32 */ static int hf_si_protocol_version = -1; static int hf_si_block_type = -1; static int hf_si_spare = -1; static int hf_si1_randomization_period = -1; /* ------------------------------------------------------------------------ */ /* CSN1 parsing structure */ /* ------------------------------------------------------------------------ */ /* Segments structures */ /* Segment 1A - [3] 11.5.2.66 */ typedef struct { guint8 SB_FRAME_TS_OFFSET; gint8 SB_SYMBOL_OFFSET; gint8 SA_FREQ_OFFSET; } Seg1A_SyncInfo_t; typedef struct { guint8 AC15; guint8 AC14; guint8 AC13; guint8 AC12; guint8 AC11; guint8 EC10; guint8 AC9; guint8 AC8; guint8 AC7; guint8 AC6; guint8 AC5; guint8 AC4; guint8 AC3; guint8 AC2; guint8 AC1; guint8 AC0; } Seg1A_AccessClasses_t; typedef struct { guint8 Max_Retrans; Seg1A_AccessClasses_t AccessClasses; guint8 CELL_BAR_ACCESS; } Seg1A_RACHCtrlParams_t; typedef struct { guint8 SB_RESELECTION_HYSTERESIS; guint8 Spare; guint8 PriorityAccessInd; } Seg1A_MiscInfo_t; typedef struct { guint8 Class_2_version; guint8 Class_3_version; Seg1A_SyncInfo_t SyncInfo; Seg1A_RACHCtrlParams_t RACHCtrlParams; Seg1A_MiscInfo_t MiscInfo; guint8 GBCH_Present; guint8 Test_GS; guint8 Test_GS2; guint8 Spare1; guint8 CELL_BAR_ACCESS_EXTENSION2; guint8 Spare2; guint8 CELL_BAR_ACCESS_EXTENSION; } Segment1A_t; /* Segment 2A & 2Abis - [3] 11.5.2.67 / 11.5.2.68 */ typedef struct { guint8 SA_SIRFN_DELAY; guint8 SA_BCCH_STN; guint16 SuperframeNum; guint8 MultiframeNum; guint8 MFFN_HighBit; } Seg2A_SyncInfo_t; typedef struct { guint8 RXLEV_SELECT_MIN; } Seg2A_SelectionCriterion_t; typedef struct { guint8 SB_SELECTION_POWER; } Seg2A_MiscInfo_t; typedef struct { guint8 SA_PCH_CONFIG; guint8 SA_BACH_CONFIG; guint8 RACH_TS_OFFSET; guint8 N_Page_Occurrences; guint8 IMSI_attach_detach_ind; guint8 ECSC_ind; guint8 SI_update_ind; } Seg2A_LAInfo_t; typedef struct { guint8 Class_4_version; Seg2A_SyncInfo_t SyncInfo; Seg2A_SelectionCriterion_t SelectionCriterion; Seg2A_MiscInfo_t MiscInfo; Seg2A_LAInfo_t LAInfo; } Segment2A_t; typedef struct { guint8 Class_4_version; Seg2A_SyncInfo_t SyncInfo; Seg2A_SelectionCriterion_t SelectionCriterion; Seg2A_MiscInfo_t MiscInfo; Seg2A_LAInfo_t LAInfo; } Segment2Abis_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment2B_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment2Bbis_t; /* Segment 3A - [1] 11.5.2.71 */ typedef struct { guint16 MCC; guint16 MNC; guint16 LAC; guint8 MSC_ID; /* splitted version of LAC */ guint16 Spot_Beam_ID; /* splitted version of LAC */ } Seg3A_LAI_t; typedef struct { guint8 Satellite_ID; guint8 System_ID; } Seg3A_System_t; typedef struct { gint8 Latitude; guint16 Longitude; gint16 Radius; } Seg3A_SatellitePosition_t; typedef struct { gint16 Latitude; guint16 Longitude; } Seg3A_BeamPosition_t; typedef struct { guint8 SB_RESELECTION_TIMER; } Seg3A_MiscInfo_t; typedef struct { Seg3A_LAI_t LAI; Seg3A_System_t System; Seg3A_SatellitePosition_t SatellitePosition; Seg3A_BeamPosition_t BeamPosition; Seg3A_MiscInfo_t MiscInfo; guint8 Spare; } Segment3A_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3B_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3Bbis_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3C_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3D_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3E_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3Ebis_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3F_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3G_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3Gbis_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3H_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3I_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3J_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3Jbis_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3Kbis_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3L_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment3M_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4A_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4B_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4C_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4D_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4E_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4F_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4G_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4H_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4I_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4J_t; typedef struct { guint8 _dummy; /* Remove when dissection is written */ } Segment4K_t; /* System informations structures */ /* System Information type 1 - [1] 10.1.31 */ typedef struct { guint8 Protocol_Version; guint8 Block_Type; guint8 Randomization_Period; guint8 Spare; } SI1_Block_Header_t; typedef struct { SI1_Block_Header_t Block_Header; Segment1A_t Segment1A; guint8 SegmentType; union { Segment2Abis_t Segment2Abis; Segment2Bbis_t Segment2Bbis; Segment3A_t Segment3A; Segment3Bbis_t Segment3Bbis; Segment3C_t Segment3C; Segment3D_t Segment3D; Segment3Ebis_t Segment3Ebis; Segment3F_t Segment3F; Segment3Gbis_t Segment3Gbis; Segment3H_t Segment3H; Segment3I_t Segment3I; Segment3Jbis_t Segment3Jbis; Segment3Kbis_t Segment3Kbis; Segment4A_t Segment4A; Segment4B_t Segment4B; Segment4C_t Segment4C; Segment4D_t Segment4D; Segment4E_t Segment4E; Segment4F_t Segment4F; Segment4G_t Segment4G; Segment4H_t Segment4H; Segment4I_t Segment4I; Segment4J_t Segment4J; Segment4K_t Segment4K; } u; } SystemInformation1_t; /* System Information type 2 - [1] 10.1.32 */ typedef struct { guint8 Protocol_Version; guint8 Block_Type; guint8 Spare; } SI2_Block_Header_t; typedef struct { SI2_Block_Header_t Block_Header; guint8 SegmentType; union { Segment2A_t Segment2A; Segment2B_t Segment2B; Segment3B_t Segment3B; Segment3E_t Segment3E; Segment3G_t Segment3G; Segment3J_t Segment3J; } u; } SystemInformation2_t; /* ------------------------------------------------------------------------ */ /* CSN1 parsing definitions */ /* ------------------------------------------------------------------------ */ /* Segments */ /* Segment 1A - [3] 11.5.2.66 */ static const CSN_DESCR_BEGIN(Seg1A_SyncInfo_t) M_UINT (Seg1A_SyncInfo_t, SB_FRAME_TS_OFFSET, 5, &hf_seg1a_syncinfo_sb_frame_ts_offset), M_UINT (Seg1A_SyncInfo_t, SB_SYMBOL_OFFSET, 6, &hf_seg1a_syncinfo_sb_symbol_offset), M_UINT (Seg1A_SyncInfo_t, SA_FREQ_OFFSET, 8, &hf_seg1a_syncinfo_sa_freq_offset), CSN_DESCR_END (Seg1A_SyncInfo_t) static const CSN_DESCR_BEGIN(Seg1A_AccessClasses_t) M_UINT (Seg1A_AccessClasses_t, AC15, 1, &hf_seg1a_rachctrl_acc[15]), M_UINT (Seg1A_AccessClasses_t, AC14, 1, &hf_seg1a_rachctrl_acc[14]), M_UINT (Seg1A_AccessClasses_t, AC13, 1, &hf_seg1a_rachctrl_acc[13]), M_UINT (Seg1A_AccessClasses_t, AC12, 1, &hf_seg1a_rachctrl_acc[12]), M_UINT (Seg1A_AccessClasses_t, AC11, 1, &hf_seg1a_rachctrl_acc[11]), M_UINT (Seg1A_AccessClasses_t, EC10, 1, &hf_seg1a_rachctrl_acc[10]), M_UINT (Seg1A_AccessClasses_t, AC9, 1, &hf_seg1a_rachctrl_acc[9]), M_UINT (Seg1A_AccessClasses_t, AC8, 1, &hf_seg1a_rachctrl_acc[8]), M_UINT (Seg1A_AccessClasses_t, AC7, 1, &hf_seg1a_rachctrl_acc[7]), M_UINT (Seg1A_AccessClasses_t, AC6, 1, &hf_seg1a_rachctrl_acc[6]), M_UINT (Seg1A_AccessClasses_t, AC5, 1, &hf_seg1a_rachctrl_acc[5]), M_UINT (Seg1A_AccessClasses_t, AC4, 1, &hf_seg1a_rachctrl_acc[4]), M_UINT (Seg1A_AccessClasses_t, AC3, 1, &hf_seg1a_rachctrl_acc[3]), M_UINT (Seg1A_AccessClasses_t, AC2, 1, &hf_seg1a_rachctrl_acc[2]), M_UINT (Seg1A_AccessClasses_t, AC1, 1, &hf_seg1a_rachctrl_acc[1]), M_UINT (Seg1A_AccessClasses_t, AC0, 1, &hf_seg1a_rachctrl_acc[0]), CSN_DESCR_END (Seg1A_AccessClasses_t) static const CSN_DESCR_BEGIN(Seg1A_RACHCtrlParams_t) M_UINT (Seg1A_RACHCtrlParams_t, Max_Retrans, 2, &hf_seg1a_rachctrl_max_retrans), M_TYPE_LABEL (Seg1A_RACHCtrlParams_t, AccessClasses, Seg1A_AccessClasses_t, "Access Classes"), M_UINT (Seg1A_RACHCtrlParams_t, CELL_BAR_ACCESS, 1, &hf_seg1a_rachctrl_cell_bar_access), CSN_DESCR_END (Seg1A_RACHCtrlParams_t) static const CSN_DESCR_BEGIN(Seg1A_MiscInfo_t) M_UINT (Seg1A_MiscInfo_t, SB_RESELECTION_HYSTERESIS, 4, &hf_seg1a_miscinfo_sb_reselection_hysteresis), M_UINT (Seg1A_MiscInfo_t, Spare, 1, &hf_seg1a_miscinfo_spare), M_UINT (Seg1A_MiscInfo_t, PriorityAccessInd, 1, &hf_seg1a_miscinfo_priority_access_ind), CSN_DESCR_END (Seg1A_MiscInfo_t) static const CSN_DESCR_BEGIN(Segment1A_t) M_UINT (Segment1A_t, Class_2_version, 3, &hf_seg1a_class_2_version), M_UINT (Segment1A_t, Class_3_version, 4, &hf_seg1a_class_3_version), M_TYPE_LABEL (Segment1A_t, SyncInfo, Seg1A_SyncInfo_t, "Synchronization Info Class 1"), M_TYPE_LABEL (Segment1A_t, RACHCtrlParams, Seg1A_RACHCtrlParams_t, "RACH Control Parameters"), M_TYPE_LABEL (Segment1A_t, MiscInfo, Seg1A_MiscInfo_t, "Misc Info Class 1"), M_UINT (Segment1A_t, GBCH_Present, 1, &hf_seg1a_gbch_present), M_UINT (Segment1A_t, Test_GS, 1, &hf_seg1a_test_gs), M_UINT (Segment1A_t, Test_GS2, 1, &hf_seg1a_test_gs2), M_UINT (Segment1A_t, Spare1, 3, &hf_seg1a_spare1), M_UINT (Segment1A_t, CELL_BAR_ACCESS_EXTENSION2, 1, &hf_seg1a_cell_bar_access_extension2), M_UINT (Segment1A_t, Spare2, 5, &hf_seg1a_spare2), M_UINT (Segment1A_t, CELL_BAR_ACCESS_EXTENSION, 1, &hf_seg1a_cell_bar_access_extension), CSN_DESCR_END (Segment1A_t) /* Segment 2A & 2Abis - [1] 11.5.2.67 / 11.5.2.68 */ static const CSN_DESCR_BEGIN(Seg2A_SyncInfo_t) M_UINT (Seg2A_SyncInfo_t, SA_SIRFN_DELAY, 4, &hf_seg2a_syncinfo_sa_sirfn_delay), M_UINT (Seg2A_SyncInfo_t, SA_BCCH_STN, 5, &hf_seg2a_syncinfo_sa_bcch_stn), M_UINT (Seg2A_SyncInfo_t, SuperframeNum, 13, &hf_seg2a_syncinfo_superframe_num), M_UINT (Seg2A_SyncInfo_t, MultiframeNum, 2, &hf_seg2a_syncinfo_multiframe_num), M_UINT (Seg2A_SyncInfo_t, MFFN_HighBit, 1, &hf_seg2a_syncinfo_mffn_high_bit), CSN_DESCR_END (Seg2A_SyncInfo_t) static const CSN_DESCR_BEGIN(Seg2A_SelectionCriterion_t) M_UINT (Seg2A_SelectionCriterion_t, RXLEV_SELECT_MIN, 5, &hf_seg2a_selcrit_rxlev_select_min), CSN_DESCR_END (Seg2A_SelectionCriterion_t) static const CSN_DESCR_BEGIN(Seg2A_MiscInfo_t) M_UINT (Seg2A_MiscInfo_t, SB_SELECTION_POWER, 4, &hf_seg2a_miscinfo_sb_selection_power), CSN_DESCR_END (Seg2A_MiscInfo_t) static const CSN_DESCR_BEGIN(Seg2A_LAInfo_t) M_UINT (Seg2A_LAInfo_t, SA_PCH_CONFIG, 2, &hf_seg2a_lainfo_sa_pch_config), M_UINT (Seg2A_LAInfo_t, SA_BACH_CONFIG, 8, &hf_seg2a_lainfo_sa_bach_config), M_UINT (Seg2A_LAInfo_t, RACH_TS_OFFSET, 5, &hf_seg2a_lainfo_rach_ts_offset), M_UINT (Seg2A_LAInfo_t, N_Page_Occurrences, 2, &hf_seg2a_lainfo_n_page_occurrences), M_UINT (Seg2A_LAInfo_t, IMSI_attach_detach_ind, 1, &hf_seg2a_lainfo_imsi_attach_detach_ind), M_UINT (Seg2A_LAInfo_t, ECSC_ind, 1, &hf_seg2a_lainfo_ecsc_indication), M_UINT (Seg2A_LAInfo_t, SI_update_ind, 1, &hf_seg2a_lainfo_si_update_ind), CSN_DESCR_END (Seg2A_LAInfo_t) static const CSN_DESCR_BEGIN(Segment2A_t) M_FIXED_LABEL(Segment2A_t, 2, 0x2, "= Class type: 2"), M_FIXED_LABEL(Segment2A_t, 4, 0x0, "= Segment type: A"), M_UINT (Segment2A_t, Class_4_version, 3, &hf_seg2a_class_4_version), M_TYPE_LABEL (Segment2A_t, SyncInfo, Seg2A_SyncInfo_t, "Synchronization Info Class 2"), M_TYPE_LABEL (Segment2A_t, SelectionCriterion, Seg2A_SelectionCriterion_t, "Selection Criterion"), M_TYPE_LABEL (Segment2A_t, MiscInfo, Seg2A_MiscInfo_t, "Misc Info Class 2"), M_TYPE_LABEL (Segment2A_t, LAInfo, Seg2A_LAInfo_t, "LA Info Class 2"), CSN_DESCR_END (Segment2A_t) static const CSN_DESCR_BEGIN(Segment2Abis_t) M_FIXED_LABEL(Segment2Abis_t, 2, 0x2, "= Class type: 2"), M_FIXED_LABEL(Segment2Abis_t, 4, 0x0, "= Segment type: Abis"), M_UINT (Segment2Abis_t, Class_4_version, 3, &hf_seg2a_class_4_version), M_TYPE_LABEL (Segment2Abis_t, SyncInfo, Seg2A_SyncInfo_t, "Synchronization Info Class 2"), M_TYPE_LABEL (Segment2Abis_t, SelectionCriterion, Seg2A_SelectionCriterion_t, "Selection Criterion"), M_TYPE_LABEL (Segment2Abis_t, MiscInfo, Seg2A_MiscInfo_t, "Misc Info Class 2"), M_TYPE_LABEL (Segment2Abis_t, LAInfo, Seg2A_LAInfo_t, "LA Info Class 2"), CSN_DESCR_END (Segment2Abis_t) static const CSN_DESCR_BEGIN(Segment2B_t) M_FIXED_LABEL(Segment2B_t, 2, 0x2, "= Class type: 2"), M_FIXED_LABEL(Segment2B_t, 4, 0x1, "= Segment type: B"), CSN_DESCR_END (Segment2B_t) static const CSN_DESCR_BEGIN(Segment2Bbis_t) M_FIXED_LABEL(Segment2Bbis_t, 2, 0x2, "= Class type: 2"), M_FIXED_LABEL(Segment2Bbis_t, 4, 0x1, "= Segment type: B bis"), CSN_DESCR_END (Segment2Bbis_t) /* Segment 3A - [1] 11.5.2.71 */ static gint16 Seg3A_LAI_Dissector(proto_tree *tree _U_, csnStream_t* ar, tvbuff_t *tvb, void* data, int ett_csn1) { Seg3A_LAI_t *LAI = (Seg3A_LAI_t *)data; proto_item *lac_item; proto_tree *lac_tree; guint8 c[5]; int i; if (ar->remaining_bits_len < 5*8) return -1; for (i=0; i<5; i++) c[i] = tvb_get_bits8(tvb, ar->bit_offset + (i<<3), 8); LAI->MCC = (c[0] & 0xf) * 100 + ((c[0] & 0xf0) >> 4) * 10 + (c[1] & 0xf); LAI->MNC = (c[2] & 0xf) * 10 + ((c[2] & 0xf0) >> 4); LAI->LAC = (c[3] << 8) | c[4]; LAI->MSC_ID = (LAI->LAC >> 10) & 0x3f; LAI->Spot_Beam_ID = LAI->LAC & 0x03ff; proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_mcc, tvb, ar->bit_offset, 16, (guint32)LAI->MCC, "%d", LAI->MCC); proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_mnc, tvb, ar->bit_offset+16, 8, (guint32)LAI->MNC, "%d", LAI->MNC); lac_item = proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_lac, tvb, ar->bit_offset+24, 16, (guint32)LAI->LAC, "0x%04x", LAI->LAC); lac_tree = proto_item_add_subtree(lac_item, ett_csn1); proto_tree_add_uint_bits_format_value(lac_tree, hf_seg3a_lai_msc_id, tvb, ar->bit_offset+24, 6, (guint32)LAI->MSC_ID, "%d", LAI->MSC_ID); proto_tree_add_uint_bits_format_value(lac_tree, hf_seg3a_lai_spot_beam_id, tvb, ar->bit_offset+30, 10, (guint32)LAI->Spot_Beam_ID, "%d", LAI->Spot_Beam_ID); ar->remaining_bits_len -= 5*8; ar->bit_offset += 5*8; return 0; } static const CSN_DESCR_BEGIN(Seg3A_System_t) M_UINT (Seg3A_System_t, Satellite_ID, 2, &hf_seg3a_system_sat_id), M_UINT (Seg3A_System_t, System_ID, 4, &hf_seg3a_system_sys_id), CSN_DESCR_END (Seg3A_System_t) static const CSN_DESCR_BEGIN(Seg3A_SatellitePosition_t) M_UINT (Seg3A_SatellitePosition_t, Latitude, 8, &hf_seg3a_satpos_latitude), M_UINT (Seg3A_SatellitePosition_t, Longitude, 12, &hf_seg3a_satpos_longitude), M_UINT (Seg3A_SatellitePosition_t, Radius, 16, &hf_seg3a_satpos_radius), CSN_DESCR_END (Seg3A_SatellitePosition_t) static const CSN_DESCR_BEGIN(Seg3A_BeamPosition_t) M_UINT (Seg3A_BeamPosition_t, Latitude, 11, &hf_seg3a_beam_latitude), M_UINT (Seg3A_BeamPosition_t, Longitude, 12, &hf_seg3a_beam_longitude), CSN_DESCR_END (Seg3A_BeamPosition_t) static const CSN_DESCR_BEGIN(Seg3A_MiscInfo_t) M_UINT (Seg3A_MiscInfo_t, SB_RESELECTION_TIMER, 6, &hf_seg3a_miscinfo_sb_reselection_timer), CSN_DESCR_END (Seg3A_MiscInfo_t) static const CSN_DESCR_BEGIN(Segment3A_t) M_FIXED_LABEL(Segment3A_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3A_t, 4, 0x0, "= Segment type: A"), M_SERIALIZE (Segment3A_t, LAI, 0, Seg3A_LAI_Dissector), M_TYPE_LABEL (Segment3A_t, System, Seg3A_System_t, "System"), M_TYPE_LABEL (Segment3A_t, SatellitePosition, Seg3A_SatellitePosition_t, "Satellite Position"), M_TYPE_LABEL (Segment3A_t, BeamPosition, Seg3A_BeamPosition_t, "Beam Center Position"), M_TYPE_LABEL (Segment3A_t, MiscInfo, Seg3A_MiscInfo_t, "Misc Info Class 3"), M_UINT (Segment3A_t, Spare, 4, &hf_seg3a_spare), CSN_DESCR_END (Segment3A_t) static const CSN_DESCR_BEGIN(Segment3B_t) M_FIXED_LABEL(Segment3B_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3B_t, 4, 0x1, "= Segment type: B"), CSN_DESCR_END (Segment3B_t) static const CSN_DESCR_BEGIN(Segment3Bbis_t) M_FIXED_LABEL(Segment3Bbis_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3Bbis_t, 4, 0x1, "= Segment type: B bis"), CSN_DESCR_END (Segment3Bbis_t) static const CSN_DESCR_BEGIN(Segment3C_t) M_FIXED_LABEL(Segment3C_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3C_t, 4, 0x2, "= Segment type: C"), CSN_DESCR_END (Segment3C_t) static const CSN_DESCR_BEGIN(Segment3D_t) M_FIXED_LABEL(Segment3D_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3D_t, 4, 0x3, "= Segment type: D"), CSN_DESCR_END (Segment3D_t) static const CSN_DESCR_BEGIN(Segment3E_t) M_FIXED_LABEL(Segment3E_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3E_t, 4, 0x4, "= Segment type: E"), CSN_DESCR_END (Segment3E_t) static const CSN_DESCR_BEGIN(Segment3Ebis_t) M_FIXED_LABEL(Segment3Ebis_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3Ebis_t, 4, 0x4, "= Segment type: E bis"), CSN_DESCR_END (Segment3Ebis_t) static const CSN_DESCR_BEGIN(Segment3F_t) M_FIXED_LABEL(Segment3F_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3F_t, 4, 0x5, "= Segment type: F"), CSN_DESCR_END (Segment3F_t) static const CSN_DESCR_BEGIN(Segment3G_t) M_FIXED_LABEL(Segment3G_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3G_t, 4, 0x6, "= Segment type: G"), CSN_DESCR_END (Segment3G_t) static const CSN_DESCR_BEGIN(Segment3Gbis_t) M_FIXED_LABEL(Segment3Gbis_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3Gbis_t, 4, 0x6, "= Segment type: G bis"), CSN_DESCR_END (Segment3Gbis_t) static const CSN_DESCR_BEGIN(Segment3H_t) M_FIXED_LABEL(Segment3H_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3H_t, 4, 0x7, "= Segment type: H"), CSN_DESCR_END (Segment3H_t) static const CSN_DESCR_BEGIN(Segment3I_t) M_FIXED_LABEL(Segment3I_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3I_t, 4, 0x9, "= Segment type: I"), CSN_DESCR_END (Segment3I_t) static const CSN_DESCR_BEGIN(Segment3J_t) M_FIXED_LABEL(Segment3J_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3J_t, 4, 0xa, "= Segment type: J"), CSN_DESCR_END (Segment3J_t) static const CSN_DESCR_BEGIN(Segment3Jbis_t) M_FIXED_LABEL(Segment3Jbis_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3Jbis_t, 4, 0xa, "= Segment type: J bis"), CSN_DESCR_END (Segment3Jbis_t) static const CSN_DESCR_BEGIN(Segment3Kbis_t) M_FIXED_LABEL(Segment3Kbis_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3Kbis_t, 4, 0xb, "= Segment type: K bis"), CSN_DESCR_END (Segment3Kbis_t) static const CSN_DESCR_BEGIN(Segment3L_t) M_FIXED_LABEL(Segment3L_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3L_t, 4, 0xc, "= Segment type: L"), CSN_DESCR_END (Segment3L_t) static const CSN_DESCR_BEGIN(Segment3M_t) M_FIXED_LABEL(Segment3M_t, 1, 0x0, "= Class type: 3"), M_FIXED_LABEL(Segment3M_t, 4, 0xd, "= Segment type: M"), CSN_DESCR_END (Segment3M_t) static const CSN_DESCR_BEGIN(Segment4A_t) M_FIXED_LABEL(Segment4A_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4A_t, 4, 0x0, "= Segment type: A"), CSN_DESCR_END (Segment4A_t) static const CSN_DESCR_BEGIN(Segment4B_t) M_FIXED_LABEL(Segment4B_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4B_t, 4, 0x1, "= Segment type: B"), CSN_DESCR_END (Segment4B_t) static const CSN_DESCR_BEGIN(Segment4C_t) M_FIXED_LABEL(Segment4C_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4C_t, 4, 0x2, "= Segment type: C"), CSN_DESCR_END (Segment4C_t) static const CSN_DESCR_BEGIN(Segment4D_t) M_FIXED_LABEL(Segment4D_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4D_t, 4, 0x3, "= Segment type: D"), CSN_DESCR_END (Segment4D_t) static const CSN_DESCR_BEGIN(Segment4E_t) M_FIXED_LABEL(Segment4E_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4E_t, 4, 0x4, "= Segment type: E"), CSN_DESCR_END (Segment4E_t) static const CSN_DESCR_BEGIN(Segment4F_t) M_FIXED_LABEL(Segment4F_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4F_t, 4, 0x5, "= Segment type: F"), CSN_DESCR_END (Segment4F_t) static const CSN_DESCR_BEGIN(Segment4G_t) M_FIXED_LABEL(Segment4G_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4G_t, 4, 0x6, "= Segment type: G"), CSN_DESCR_END (Segment4G_t) static const CSN_DESCR_BEGIN(Segment4H_t) M_FIXED_LABEL(Segment4H_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4H_t, 4, 0x7, "= Segment type: H"), CSN_DESCR_END (Segment4H_t) static const CSN_DESCR_BEGIN(Segment4I_t) M_FIXED_LABEL(Segment4I_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4I_t, 4, 0x8, "= Segment type: I"), CSN_DESCR_END (Segment4I_t) static const CSN_DESCR_BEGIN(Segment4J_t) M_FIXED_LABEL(Segment4J_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4J_t, 4, 0x9, "= Segment type: J"), CSN_DESCR_END (Segment4J_t) static const CSN_DESCR_BEGIN(Segment4K_t) M_FIXED_LABEL(Segment4K_t, 3, 0x6, "= Class type: 4"), M_FIXED_LABEL(Segment4K_t, 4, 0xa, "= Segment type: K"), CSN_DESCR_END (Segment4K_t) /* System information */ /* System Information type 1 - [1] 10.1.31 */ static const CSN_DESCR_BEGIN(SI1_Block_Header_t) M_UINT (SI1_Block_Header_t, Protocol_Version, 4, &hf_si_protocol_version), M_UINT (SI1_Block_Header_t, Block_Type, 1, &hf_si_block_type), M_UINT (SI1_Block_Header_t, Randomization_Period, 2, &hf_si1_randomization_period), M_UINT (SI1_Block_Header_t, Spare, 1, &hf_si_spare), CSN_DESCR_END (SI1_Block_Header_t) static const CSN_ChoiceElement_t SI1_SegmentChoice[] = { {6, 0x20, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment2Abis, Segment2Abis_t, "Segment 2A bis")}, {6, 0x21, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment2Bbis, Segment2Bbis_t, "Segment 2B bis")}, {5, 0x00, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3A, Segment3A_t, "Segment 3A")}, {5, 0x01, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Bbis, Segment3Bbis_t, "Segment 3B bis")}, {5, 0x02, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3C, Segment3C_t, "Segment 3C")}, {5, 0x03, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3D, Segment3D_t, "Segment 3D")}, {5, 0x04, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Ebis, Segment3Ebis_t, "Segment 3E bis")}, {5, 0x05, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3F, Segment3F_t, "Segment 3F")}, {5, 0x06, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Gbis, Segment3Gbis_t, "Segment 3G bis")}, {5, 0x07, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3H, Segment3H_t, "Segment 3H")}, {5, 0x09, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3I, Segment3I_t, "Segment 3I")}, {5, 0x0a, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Jbis, Segment3Jbis_t, "Segment 3J bis")}, {5, 0x0b, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Kbis, Segment3Kbis_t, "Segment 3K bis")}, {7, 0x60, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4A, Segment4A_t, "Segment 4A")}, {7, 0x61, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4B, Segment4B_t, "Segment 4B")}, {7, 0x62, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4C, Segment4C_t, "Segment 4C")}, {7, 0x63, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4D, Segment4D_t, "Segment 4D")}, {7, 0x64, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4E, Segment4E_t, "Segment 4E")}, {7, 0x65, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4F, Segment4F_t, "Segment 4F")}, {7, 0x66, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4G, Segment4G_t, "Segment 4G")}, {7, 0x67, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4H, Segment4H_t, "Segment 4H")}, {7, 0x68, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4I, Segment4I_t, "Segment 4I")}, {7, 0x69, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4J, Segment4J_t, "Segment 4J")}, {7, 0x6a, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4K, Segment4K_t, "Segment 4K")}, {0, 0x00, 1, CSN_ERROR(SystemInformation1_t, "Unknown segment !", -1)}, }; static const CSN_DESCR_BEGIN(SystemInformation1_t) M_TYPE_LABEL (SystemInformation1_t, Block_Header, SI1_Block_Header_t, "Block Header"), M_TYPE_LABEL (SystemInformation1_t, Segment1A, Segment1A_t, "Segment 1A"), M_CHOICE_IL (SystemInformation1_t, SegmentType, SI1_SegmentChoice, ElementsOf(SI1_SegmentChoice)), CSN_DESCR_END (SystemInformation1_t) /* System Information type 2 - [1] 10.1.32 */ CSN_DESCR_BEGIN(SI2_Block_Header_t) M_UINT (SI2_Block_Header_t, Protocol_Version, 4, &hf_si_protocol_version), M_UINT (SI2_Block_Header_t, Block_Type, 1, &hf_si_block_type), M_UINT (SI2_Block_Header_t, Spare, 3, &hf_si_spare), CSN_DESCR_END (SI2_Block_Header_t) static const CSN_ChoiceElement_t SI2_SegmentChoice[] = { {6, 0x20, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment2A, Segment2A_t, "Segment 2A")}, {6, 0x21, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment2B, Segment2B_t, "Segment 2B")}, {5, 0x01, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3B, Segment3B_t, "Segment 3B")}, {5, 0x04, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3E, Segment3E_t, "Segment 3E")}, {5, 0x06, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3G, Segment3G_t, "Segment 3G")}, {5, 0x0a, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3J, Segment3J_t, "Segment 3J")}, {0, 0x00, 1, CSN_ERROR(SystemInformation2_t, "Unknown segment !", -1)}, }; static const CSN_DESCR_BEGIN(SystemInformation2_t) M_TYPE_LABEL (SystemInformation2_t, Block_Header, SI2_Block_Header_t, "Block Header"), M_CHOICE_IL (SystemInformation2_t, SegmentType, SI2_SegmentChoice, ElementsOf(SI2_SegmentChoice)), CSN_DESCR_END (SystemInformation2_t) /* ------------------------------------------------------------------------ */ /* Fields values */ /* ------------------------------------------------------------------------ */ /* Common stuff */ static void segx_half_db_value_fmt(gchar *s, guint32 v) { g_snprintf(s, ITEM_LABEL_LENGTH, "%2.1f dB (%u)", v * 0.5f, v); } /* Segment 1A - [3] 11.5.2.66 */ static void seg1a_syncinfo_sa_freq_offset_fmt(gchar *s, guint32 v) { gint32 sv = (gint32)v; g_snprintf(s, ITEM_LABEL_LENGTH, "%d Hz (%d)", sv * 5, sv); } static const value_string seg1a_rachctrl_acc_vals[] = { { 0, "not barred (allowed)"}, { 1, "barred (not allowed)"}, { 0, NULL } }; static const value_string seg1a_rachctrl_cell_bar_access_vals[] = { { 0, "The cell is not barred"}, { 1, "The cell is barred"}, { 0, NULL } }; /* Segment 2A & 2Abis - [1] 11.5.2.67 & 11.5.2.68 */ static const value_string seg2a_lainfo_imsi_attach_detach_ind_vals[] = { { 0, "MESs shall NOT apply IMSI attach and detach procedure for this LA"}, { 1, "MESs shall apply IMSI attach and detach procedure for this LA"}, { 0, NULL } }; static const value_string seg2a_lainfo_ecsc_indication_vals[] = { { 0, "Early sending is explicitly prohibited"}, { 1, "Early sending is explicitly accepted"}, { 0, NULL } }; /* Segment 3A - [1] 11.5.2.71 */ static void seg3a_latitude_fmt(gchar *s, guint32 v) { gint32 sv = (gint32)v; char c; if (sv < 0) { c = 'S'; sv = -sv; } else c = 'N'; g_snprintf(s, ITEM_LABEL_LENGTH, "%.1f %c (%d)", sv / 10.0f, c, sv); } static void seg3a_longitude_fmt(gchar *s, guint32 v) { gint32 sv; char c; if (v < 1800) { c = 'W'; sv = v; } else { c = 'E'; sv = 3600 - v; } g_snprintf(s, ITEM_LABEL_LENGTH, "%.1f %c (%u)", sv / 10.0f, c, v); } static void seg3a_satpos_radius_fmt(gchar *s, guint32 v) { gint32 sv = (gint32)v; gint32 a = (42162 * 1000) + (sv * 5); g_snprintf(s, ITEM_LABEL_LENGTH, "%.3lf km (%u)", a / 1000.0, sv); } static void seg3a_miscinfo_sb_reselection_timer_fmt(gchar *s, guint32 v) { g_snprintf(s, ITEM_LABEL_LENGTH, "%d minutes (%u)", v*4, v); } /* System Information 1 - [1] 10.3.31 */ static const value_string si1_randomization_period_vals[] = { { 0, "7 frames after this SI block" }, { 1, "15 frames after this SI block" }, { 2, "23 frames after this SI block" }, { 3, "31 frames after this SI block" }, { 0, NULL } }; /* ------------------------------------------------------------------------ */ /* Dissector code */ /* ------------------------------------------------------------------------ */ static void dissect_gmr1_bcch(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { proto_item *bcch_item = NULL; proto_tree *bcch_tree = NULL; csnStream_t ar; gboolean is_si1; col_append_str(pinfo->cinfo, COL_INFO, "(BCCH) "); is_si1 = tvb_get_bits8(tvb, 0, 5) & 1; bcch_item = proto_tree_add_protocol_format( tree, proto_gmr1_bcch, tvb, 0, -1, "GMR-1 BCCH - System Information type %d", is_si1 ? 1 : 2 ); bcch_tree = proto_item_add_subtree(bcch_item, ett_gmr1_bcch); csnStreamInit(&ar, 0, tvb_length(tvb)*8); /* SI1 or SI2 */ if (is_si1) { SystemInformation1_t *data; data = ep_alloc(sizeof(SystemInformation1_t)); csnStreamDissector(bcch_tree, &ar, CSNDESCR(SystemInformation1_t), tvb, data, ett_gmr1_bcch); col_append_fstr( pinfo->cinfo, COL_INFO, "System Information 1: Segment 1A, %s", SI1_SegmentChoice[data->SegmentType].descr.sz ); } else { SystemInformation2_t *data; data = ep_alloc(sizeof(SystemInformation2_t)); csnStreamDissector(bcch_tree, &ar, CSNDESCR(SystemInformation2_t), tvb, data, ett_gmr1_bcch); col_append_fstr( pinfo->cinfo, COL_INFO, "System Information 2: %s", SI2_SegmentChoice[data->SegmentType].descr.sz ); } } void proto_register_gmr1_bcch(void) { static hf_register_info hf[] = { /* Segment 1A - [3] 11.5.2.66 */ { &hf_seg1a_class_2_version, { "Class 2 version", "gmr1.bcch.seg1a.class_2_version", FT_UINT8, BASE_DEC, NULL, 0x00, "Version number for current Class 2 information", HFILL } }, { &hf_seg1a_class_3_version, { "Class 3 version", "gmr1.bcch.seg1a.class_3_version", FT_UINT8, BASE_DEC, NULL, 0x00, "Version number for current Class 3 information", HFILL } }, { &hf_seg1a_syncinfo_sb_frame_ts_offset, { "SB_FRAME_TS_OFFSET", "gmr1.bcch.seg1a.syncinfo.sb_frame_ts_offset", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_syncinfo_sb_symbol_offset, { "SB_SYMBOL_OFFSET", "gmr1.bcch.seg1a.syncinfo.sb_symbol_offset", FT_INT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_syncinfo_sa_freq_offset, { "SA_FREQ_OFFSET", "gmr1.bcch.seg1a.syncinfo.sa_freq_offset", FT_UINT8, BASE_CUSTOM, seg1a_syncinfo_sa_freq_offset_fmt, 0x00, NULL, HFILL } }, { &hf_seg1a_rachctrl_max_retrans, { "Max Retrans", "gmr1.bcch.seg1a.rachctrl.max_retrans", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_rachctrl_acc[15], { "AC15", "gmr1.bcch.seg1a.rachctrl.ac15", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 15 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[14], { "AC14", "gmr1.bcch.seg1a.rachctrl.ac14", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 14 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[13], { "AC13", "gmr1.bcch.seg1a.rachctrl.ac13", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 13 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[12], { "AC12", "gmr1.bcch.seg1a.rachctrl.ac12", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 12 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[11], { "AC11", "gmr1.bcch.seg1a.rachctrl.ac11", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 11 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[10], { "EC10", "gmr1.bcch.seg1a.rachctrl.ac10", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Emergency Class 10 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[9], { "AC9", "gmr1.bcch.seg1a.rachctrl.ac9", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 9 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[8], { "AC8", "gmr1.bcch.seg1a.rachctrl.ac8", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 8 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[7], { "AC7", "gmr1.bcch.seg1a.rachctrl.ac7", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 7 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[6], { "AC6", "gmr1.bcch.seg1a.rachctrl.ac6", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 6 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[5], { "AC5", "gmr1.bcch.seg1a.rachctrl.ac5", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 5 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[4], { "AC4", "gmr1.bcch.seg1a.rachctrl.ac4", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 4 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[3], { "AC3", "gmr1.bcch.seg1a.rachctrl.ac3", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 3 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[2], { "AC2", "gmr1.bcch.seg1a.rachctrl.ac2", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 2 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[1], { "AC1", "gmr1.bcch.seg1a.rachctrl.ac1", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 1 barred", HFILL } }, { &hf_seg1a_rachctrl_acc[0], { "AC0", "gmr1.bcch.seg1a.rachctrl.ac0", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00, "Access Class 0 barred", HFILL } }, { &hf_seg1a_rachctrl_cell_bar_access, { "CELL_BAR_ACCESS", "gmr1.bcch.seg1a.rachctrl.cell_bar_access", FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_cell_bar_access_vals), 0x00, NULL, HFILL } }, { &hf_seg1a_miscinfo_sb_reselection_hysteresis, { "SB_RESELECTION_HYSTERESIS", "gmr1.bcch.seg1a.miscinfo.sb_reselection_hysteresis", FT_UINT8, BASE_CUSTOM, segx_half_db_value_fmt, 0x00, NULL, HFILL } }, { &hf_seg1a_miscinfo_spare, { "Spare", "gmr1.bcch.seg1a.miscinfo.spare", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_miscinfo_priority_access_ind, { "Priority Access Ind", "gmr1.bcch.seg1a.miscinfo.priority_access_ind", FT_UINT8, BASE_DEC, NULL, 0x00, "Reserved for future use", HFILL } }, { &hf_seg1a_gbch_present, { "GBCH Present", "gmr1.bcch.seg1a.gbch_present", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_test_gs, { "Test GS", "gmr1.bcch.seg1a.test_gs", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_test_gs2, { "Test GS2", "gmr1.bcch.seg1a.test_gs2", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_spare1, { "Spare", "gmr1.bcch.seg1a.spare1", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_cell_bar_access_extension2, { "CELL_BAR_ACCESS_EXTENSION2", "gmr1.bcch.seg1a.cell_bar_access_extension2", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_spare2, { "Spare", "gmr1.bcch.seg1a.spare2", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg1a_cell_bar_access_extension, { "CELL_BAR_ACCESS_EXTENSION", "gmr1.bcch.seg1a.cell_bar_access_extension", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, /* Segment 2A - [1] 11.5.2.67 */ { &hf_seg2a_class_4_version, { "Class 4 version", "gmr1.bcch.seg2a.class_4_version", FT_UINT8, BASE_DEC, NULL, 0x00, "Version number for current Class 4 information", HFILL } }, { &hf_seg2a_syncinfo_sa_sirfn_delay, { "SA_SIRFN_DELAY", "gmr1.bcch.seg2a.syncinfo.sa_sirfn_delay", FT_UINT8, BASE_DEC, NULL, 0x00, "Delay of system information relative to superframe", HFILL } }, { &hf_seg2a_syncinfo_sa_bcch_stn, { "SA_BCCH_STN", "gmr1.bcch.seg2a.syncinfo.sa_bcch_stn", FT_UINT8, BASE_DEC, NULL, 0x00, "Starting timeslot number", HFILL } }, { &hf_seg2a_syncinfo_superframe_num, { "Superframe Number", "gmr1.bcch.seg2a.syncinfo.superframe_num", FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg2a_syncinfo_multiframe_num, { "Multiframe Number", "gmr1.bcch.seg2a.syncinfo.multiframe_num", FT_UINT8, BASE_DEC, NULL, 0x00, "Multiframe number in a superframe", HFILL } }, { &hf_seg2a_syncinfo_mffn_high_bit, { "MFFN high bit", "gmr1.bcch.seg2a.syncinfo.mffn_high_bit", FT_UINT8, BASE_DEC, NULL, 0x00, "High bit of the TDMA FN in a multiframe", HFILL } }, { &hf_seg2a_selcrit_rxlev_select_min, { "RXLEV_SELECT_MIN", "gmr1.bcch.seg2a.selcrit.rxlev_select_min", FT_UINT8, BASE_CUSTOM, segx_half_db_value_fmt, 0x00, "Adjustment to threshold to camp-on system", HFILL } }, { &hf_seg2a_miscinfo_sb_selection_power, { "SB_SELECTION_POWER", "gmr1.bcch.seg2a.miscinfo.sb_selection_power", FT_UINT8, BASE_CUSTOM, segx_half_db_value_fmt, 0x00, NULL, HFILL } }, { &hf_seg2a_lainfo_sa_pch_config, { "SA_PCH_CONFIG", "gmr1.bcch.seg2a.lainfo.sa_pch_config", FT_UINT8, BASE_DEC, NULL, 0x00, "Paging group configuration information", HFILL } }, { &hf_seg2a_lainfo_sa_bach_config, { "SA_BACH_CONFIG", "gmr1.bcch.seg2a.lainfo.sa_bach_config", FT_UINT8, BASE_DEC, NULL, 0x00, "Alerting group configuration information", HFILL } }, { &hf_seg2a_lainfo_rach_ts_offset, { "RACH_TS_OFFSET", "gmr1.bcch.seg2a.lainfo.rach_ts_offset", FT_UINT8, BASE_DEC, NULL, 0x00, "Start of RACH window with respect to BCCH", HFILL } }, { &hf_seg2a_lainfo_n_page_occurrences, { "N Page Occurrences", "gmr1.bcch.seg2a.lainfo.n_page_occurrences", FT_UINT8, BASE_DEC, NULL, 0x00, "Number of times a page shall be retransmitted after the initial transmission", HFILL } }, { &hf_seg2a_lainfo_imsi_attach_detach_ind, { "IMSI attach-detach ind", "gmr1.bcch.seg2a.lainfo.imsi_attach_detach_ind", FT_UINT8, BASE_DEC, VALS(seg2a_lainfo_imsi_attach_detach_ind_vals), 0x00, "Should MESs apply IMSI attach and detach procedure for this LA", HFILL } }, { &hf_seg2a_lainfo_ecsc_indication, { "ECSC indication", "gmr1.bcch.seg2a.lainfo.ecsc_indication", FT_UINT8, BASE_DEC, VALS(seg2a_lainfo_ecsc_indication_vals), 0x00, "Early Classmark Sending Control", HFILL } }, { &hf_seg2a_lainfo_si_update_ind, { "SI update ind", "gmr1.bcch.seg2a.lainfo.si_update_ind", FT_UINT8, BASE_DEC, NULL, 0x00, "Flag for BACH reorganization. Value changes after each reorganization", HFILL } }, /* Segment 3A - [1] 11.5.2.71 */ { &hf_seg3a_lai_mcc, { "Mobile Country Code (MCC)", "gmr1.bcch.seg3a.lai.mcc", FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg3a_lai_mnc, { "Mobile Network Code (MNC)", "gmr1.bcch.seg3a.lai.mnc", FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg3a_lai_lac, { "Location Area Code (LAC)", "gmr1.bcch.seg3a.lai.lac", FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL } }, { &hf_seg3a_lai_msc_id, { "MSC ID", "gmr1.bcch.seg3a.lai.msc_id", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg3a_lai_spot_beam_id, { "Spot Beam ID", "gmr1.bcch.seg3a.lai.spot_beam_id", FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg3a_system_sat_id, { "Satellite ID", "gmr1.bcch.seg3a.system.sat_id", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg3a_system_sys_id, { "System ID", "gmr1.bcch.seg3a.system.sys_id", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_seg3a_satpos_latitude, { "Latitude", "gmr1.bcch.seg3a.satpos.latitude", FT_INT8, BASE_CUSTOM, seg3a_latitude_fmt, 0x00, NULL, HFILL } }, { &hf_seg3a_satpos_longitude, { "Longitude", "gmr1.bcch.seg3a.satpos.longitude", FT_UINT16, BASE_CUSTOM, seg3a_longitude_fmt, 0x00, NULL, HFILL } }, { &hf_seg3a_satpos_radius, { "Radius", "gmr1.bcch.seg3a.satpos.radius", FT_INT16, BASE_CUSTOM, seg3a_satpos_radius_fmt, 0x00, NULL, HFILL } }, { &hf_seg3a_beam_latitude, { "Latitude", "gmr1.bcch.seg3a.beam.latitude", FT_INT16, BASE_CUSTOM, seg3a_latitude_fmt, 0x00, NULL, HFILL } }, { &hf_seg3a_beam_longitude, { "Longitude", "gmr1.bcch.seg3a.beam.longitude", FT_UINT16, BASE_CUSTOM, seg3a_longitude_fmt, 0x00, NULL, HFILL } }, { &hf_seg3a_miscinfo_sb_reselection_timer, { "SB_RESELECTION_TIMER", "gmr1.bcch.seg3a.sb_reselection_timer", FT_UINT8, BASE_CUSTOM, seg3a_miscinfo_sb_reselection_timer_fmt, 0x00, NULL, HFILL } }, { &hf_seg3a_spare, { "Spare", "gmr1.bcch.seg3a.spare", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, /* System Information fields - [1] 10.1.31 & 10.1.32 */ { &hf_si_protocol_version, { "Protocol version", "gmr1.bcch.si.protocol_version", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_si_block_type, { "Block Type", "gmr1.bcch.si.block_type", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_si_spare, { "Spare", "gmr1.bcch.si.spare", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_si1_randomization_period, { "Randomization Period", "gmr1.bcch.si.randomization_period", FT_UINT8, BASE_DEC, VALS(si1_randomization_period_vals), 0x00, NULL, HFILL } }, }; static gint *ett[] = { &ett_gmr1_bcch, }; proto_gmr1_bcch = proto_register_protocol("GEO-Mobile Radio (1) BCCH", "GMR-1 BCCH", "gmr1.bcch"); proto_register_field_array(proto_gmr1_bcch, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); register_dissector("gmr1_bcch", dissect_gmr1_bcch, proto_gmr1_bcch); } void proto_reg_handoff_gmr1_bcch(void) { data_handle = find_dissector("data"); }